(3) This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.
(3) Now he enters into a question, by which we may understand that we are joined together with Christ, that is, if we are governed with his light, which is perceived by the ordering of our life. And thus he reasons, God is in himself most pure light, therefore he agrees well with them who are of the light, but with them that are of the darkness he has no fellowship.